Presence of Campylobacter in marine waters of Valencia, Spain

Alonso, José L.; Alonso, Maria Augusta

doi:10.1016/0043-1354(93)90100-v

Cited by 25 publications

(17 citation statements)

References 18 publications

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“…(Koenraad et al 1997;Desmond et al 2008). In agreement with the present study, Campylobacter is not as frequently detected in marine water environments as in fresh water (Alonso & Alonso 1993), although it has been shown to be a common contaminant of shellfish (Wilson & Moore 1996).…”

Section: Detection Of the Molecular Mst Indicators And Campylobacter supporting

confidence: 91%

Culture-based indicators of fecal contamination and molecular microbial indicators rarely correlate with Campylobacter spp. in recreational waters

Hellein

Battie

Tauchman

et al. 2011

Journal of Water and Health

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Campylobacter spp. are the leading cause of gastroenteritis worldwide. Most human infections result from contaminated food; however, infections are also caused by recreational waterway contamination. Campylobacter culture is technically challenging and enumeration by culture-based methods is onerous. Thus, we employed qPCR to quantify Campylobacter spp. in fresh-and marinewater samples, raw sewage and animal feces. Multiplex PCR determined whether Campylobacter jejuni or C. coli, most commonly associated with human disease, were present in qPCR-positive samples. Campylobacters were detected in raw sewage, and in feces of all avian and mammalian species tested. Campylobacter-positive concentrations ranged from 68 to 2.3 × 10 6 cells per 500 mL.Although C. jejuni and C. coli were rare in waterways, they were prevalent in sewage and feces.Campylobacter-specific qPCR screening of environmental waters did not correlate with the regulatory EPA method 1600 (Enterococcus culture), nor with culture-independent, molecular-based microbial source tracking indicators, such as human polyomavirus, human Bacteroidales and Methanobrevibacter smithii. Our results suggest that neither the standard EPA method nor the newly proposed culture-independent methods are appropriate surrogates for Campylobacter contamination in water. Thus, assays for specific pathogens may be necessary to protect human health, especially in waters that are contaminated with sewage and animal feces.

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Section: Detection Of the Molecular Mst Indicators And Campylobacter supporting

confidence: 91%

Culture-based indicators of fecal contamination and molecular microbial indicators rarely correlate with Campylobacter spp. in recreational waters

Hellein

Battie

Tauchman

et al. 2011

Journal of Water and Health

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“…perfringens is not an adequate indicator to assure the safety of shellfish for immediate human consumption. Likewise, conflicting studies on the usefulness of faecal coliforms as indicators of campylobacter contamination of water have been reported [41]. In the present study, faecal coliforms and E. coli were absent in 14 and 21 % respectively of samples which contained campylobacters (Table 4).…”

Section: Discussionmentioning

confidence: 76%

Presence ofSalmonellaspp. andCampylobacterspp. in shellfish

1996

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Bivalve molluscs, (cockles, mussels, scallops and oysters) were examined according to EC shellfish bed classification regulations for faecal coliforms, Escherichia coli and salmonella, and for coliforms and campylobacter which are not specified by these regulations. Salmonella serotypes were detected in 8% of 433 molluscs. Seven salmonella isolations (2%) were made from category A beds, nominally suitable for immediate consumption according to E. coli counts. A higher percentage of salmonella isolates (6%) was detected in shellfish which require relaying or depuration prior to eating. In another survey, thermophilic Campylobacter spp. were found in 42% of 380 shellfish. These findings show bed classification on the basis of indicator organisms alone is not sufficient to assure the absence of bacterial, and no doubt viral, pathogens. Depuration and end product specifications which require the absence of salmonellae are an essential part of these regulations. Microbiologists may wish to consider whether tests for pathogens such as salmonella and campylobacter should be included when determining the suitability of shellfish for human consumption.

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“…Canipylobacten are commensals of all wild and domestic animals' gasuointestinal tracts, and these warm blooded animals and birds continually contaminate the environment with Carnpylobaoe, : The bacterium has been isolated from fresh and marine waters around the world (Norkrans and Svedhem, 1982;Blaser et al, 1979;Franco, 1987;Alonso and Alonso, 1993;Knill et al, 1978;Jones et al, 1990), and areas heavily polluted with sewage, farm runoff, or sludge have led to higher rates of isolation (Abeyta et al, 1993). Shellfish growing waters have also been found contaminated with Catripylobacter jejirrli and Cantpylobacter coli (Abeyta et al, 1993), and in 1986 the organisms were isolated from 14% of oysters harvested from contaminated beds (Arumugaswamy and Proudford, 1987).…”

Section: Introductionmentioning

confidence: 99%

Qualitative and Quantitative Analysis ofCampylobacter jejuniandCampylobacter coliin Fresh Blue Crab (Callinectes sapidus) Meat

Reinhard

McAdams

Flick

et al. 1996

Journal of Aquatic Food Product Technology

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32 JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGYcoli counts ranged from <0.3 to 0.77 MPNIg. Cutnpylobacter jejuni was isolated from 36 (15%) samples and Camnpglobacter coli was isolated from 14 (5.8%). There was no statistical correlation between general microbial quality, plant size or inspection score (sanitation) and the presence of Canipylobacrer species. [Article copies available frona The Haworth Docrtnte~~t Delivery S e n k e : 1-800-342-9678].

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Presence of Campylobacter in marine waters of Valencia, Spain

Cited by 25 publications

References 18 publications

Culture-based indicators of fecal contamination and molecular microbial indicators rarely correlate with Campylobacter spp. in recreational waters

Culture-based indicators of fecal contamination and molecular microbial indicators rarely correlate with Campylobacter spp. in recreational waters

Presence ofSalmonellaspp. andCampylobacterspp. in shellfish

Qualitative and Quantitative Analysis ofCampylobacter jejuniandCampylobacter coliin Fresh Blue Crab (Callinectes sapidus) Meat

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